PostMessage

public void PutMessage(String queueName, String message)
{
    String requestMethod = "POST";

    String urlPath = String.Format("{0}/messages", queueName);

    String storageServiceVersion = "2012-02-12";
    String dateInRfc1123Format = DateTime.UtcNow.ToString("R", CultureInfo.InvariantCulture);

    String messageText = String.Format(
            "<QueueMessage><MessageText>{0}</MessageText></QueueMessage>", message);
    UTF8Encoding utf8Encoding = new UTF8Encoding();
    Byte[] messageContent = utf8Encoding.GetBytes(messageText);
    Int32 messageLength = messageContent.Length;

    String canonicalizedHeaders = String.Format(
            "x-ms-date:{0}\nx-ms-version:{1}",
            dateInRfc1123Format,
            storageServiceVersion);
    String canonicalizedResource = String.Format("/{0}/{1}", AzureStorageConstants.Account, urlPath);
    String stringToSign = String.Format(
            "{0}\n\n\n{1}\n\n\n\n\n\n\n\n\n{2}\n{3}",
            requestMethod,
            messageLength,
            canonicalizedHeaders,
            canonicalizedResource);
    String authorizationHeader = Utility.CreateAuthorizationHeader(stringToSign);

    Uri uri = new Uri(AzureStorageConstants.QueueEndPoint + urlPath);
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
    request.Method = requestMethod;
    request.Headers.Add("x-ms-date", dateInRfc1123Format);
    request.Headers.Add("x-ms-version", storageServiceVersion);
    request.Headers.Add("Authorization", authorizationHeader);
    request.ContentLength = messageLength;

    using (Stream requestStream = request.GetRequestStream())
    {
        requestStream.Write(messageContent, 0, messageLength);
    }

    using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
    {
        String requestId = response.Headers["x-ms-request-id"];
    }
}